This is a tutorial for people who want to know how to upload their dolls on the internet. It covers file formats, transparency, uploading and posting on forums.
To follow this tutorial, you need MS Paint and Irfanview for transparency. Irfanview is a free graphic viewer that can be downloaded here, but if you do not want to/can't download it for some reason, you can just skip over the transparency step.

Saving
1. Crop your doll
Place your doll in the upper left corner of the MS Paint window, then put your mouse over the little dot on the edge of the canvas and drag it towards your doll, so that there is minimal white space left between the edge of the image and your doll.
The edges don't have to touch your doll exactly, you can leave a few pixels room on each side, but any more than about 10px is unnecessary.

Never ever save your doll as GIF or JPG in MS Paint. While GIF is a useable format for dolls, MS Paint does not handle it well and will likely mess up the image quality if you try to save as GIF. JPG should not be used for dolls at all.

3. And there you have it:
If you don't want to make your doll transparent, you can skip over the following section and go straight to uploading.